name : DocXMLRPCServer.py """Self documenting XML-RPC Server. This module can be used to create XML-RPC servers that serve pydoc-style documentation in response to HTTP GET requests. This documentation is dynamically generated based on the functions and methods registered with the server. This module is built upon the pydoc and SimpleXMLRPCServer modules. """ import pydoc import inspect import re import sys from SimpleXMLRPCServer import (SimpleXMLRPCServer, SimpleXMLRPCRequestHandler, CGIXMLRPCRequestHandler, resolve_dotted_attribute) def _html_escape_quote(s): s = s.replace("&", "&amp;") # Must be done first! s = s.replace("<", "&lt;") s = s.replace(">", "&gt;") s = s.replace('"', "&quot;") s = s.replace('\'', "&#x27;") return s class ServerHTMLDoc(pydoc.HTMLDoc): """Class used to generate pydoc HTML document for a server""" def markup(self, text, escape=None, funcs={}, classes={}, methods={}): """Mark up some plain text, given a context of symbols to look for. Each context dictionary maps object names to anchor names.""" escape = escape or self.escape results = [] here = 0 # XXX Note that this regular expression does not allow for the # hyperlinking of arbitrary strings being used as method # names. Only methods with names consisting of word characters # and '.'s are hyperlinked. pattern = re.compile(r'\b((http|ftp)://\S+[\w/]|' r'RFC[- ]?(\d+)|' r'PEP[- ]?(\d+)|' r'(self\.)?((?:\w|\.)+))\b') while 1: match = pattern.search(text, here) if not match: break start, end = match.span() results.append(escape(text[here:start])) all, scheme, rfc, pep, selfdot, name = match.groups() if scheme: url = escape(all).replace('"', '&quot;') results.append('<a href="%s">%s</a>' % (url, url)) elif rfc: url = 'http://www.rfc-editor.org/rfc/rfc%d.txt' % int(rfc) results.append('<a href="%s">%s</a>' % (url, escape(all))) elif pep: url = 'http://www.python.org/dev/peps/pep-%04d/' % int(pep) results.append('<a href="%s">%s</a>' % (url, escape(all))) elif text[end:end+1] == '(': results.append(self.namelink(name, methods, funcs, classes)) elif selfdot: results.append('self.<strong>%s</strong>' % name) else: results.append(self.namelink(name, classes)) here = end results.append(escape(text[here:])) return ''.join(results) def docroutine(self, object, name, mod=None, funcs={}, classes={}, methods={}, cl=None): """Produce HTML documentation for a function or method object.""" anchor = (cl and cl.__name__ or '') + '-' + name note = '' title = '<a name="%s"><strong>%s</strong></a>' % ( self.escape(anchor), self.escape(name)) if inspect.ismethod(object): args, varargs, varkw, defaults = inspect.getargspec(object.im_func) # exclude the argument bound to the instance, it will be # confusing to the non-Python user argspec = inspect.formatargspec ( args[1:], varargs, varkw, defaults, formatvalue=self.formatvalue ) elif inspect.isfunction(object): args, varargs, varkw, defaults = inspect.getargspec(object) argspec = inspect.formatargspec( args, varargs, varkw, defaults, formatvalue=self.formatvalue) else: argspec = '(...)' if isinstance(object, tuple): argspec = object[0] or argspec docstring = object[1] or "" else: docstring = pydoc.getdoc(object) decl = title + argspec + (note and self.grey( '<font face="helvetica, arial">%s</font>' % note)) doc = self.markup( docstring, self.preformat, funcs, classes, methods) doc = doc and '<dd><tt>%s</tt></dd>' % doc return '<dl><dt>%s</dt>%s</dl>\n' % (decl, doc) def docserver(self, server_name, package_documentation, methods): """Produce HTML documentation for an XML-RPC server.""" fdict = {} for key, value in methods.items(): fdict[key] = '#-' + key fdict[value] = fdict[key] server_name = self.escape(server_name) head = '<big><big><strong>%s</strong></big></big>' % server_name result = self.heading(head, '#ffffff', '#7799ee') doc = self.markup(package_documentation, self.preformat, fdict) doc = doc and '<tt>%s</tt>' % doc result = result + '<p>%s</p>\n' % doc contents = [] method_items = sorted(methods.items()) for key, value in method_items: contents.append(self.docroutine(value, key, funcs=fdict)) result = result + self.bigsection( 'Methods', '#ffffff', '#eeaa77', pydoc.join(contents)) return result class XMLRPCDocGenerator: """Generates documentation for an XML-RPC server. This class is designed as mix-in and should not be constructed directly. """ def __init__(self): # setup variables used for HTML documentation self.server_name = 'XML-RPC Server Documentation' self.server_documentation = \ "This server exports the following methods through the XML-RPC "\ "protocol." self.server_title = 'XML-RPC Server Documentation' def set_server_title(self, server_title): """Set the HTML title of the generated server documentation""" self.server_title = server_title def set_server_name(self, server_name): """Set the name of the generated HTML server documentation""" self.server_name = server_name def set_server_documentation(self, server_documentation): """Set the documentation string for the entire server.""" self.server_documentation = server_documentation def generate_html_documentation(self): """generate_html_documentation() => html documentation for the server Generates HTML documentation for the server using introspection for installed functions and instances that do not implement the _dispatch method. Alternatively, instances can choose to implement the _get_method_argstring(method_name) method to provide the argument string used in the documentation and the _methodHelp(method_name) method to provide the help text used in the documentation.""" methods = {} for method_name in self.system_listMethods(): if method_name in self.funcs: method = self.funcs[method_name] elif self.instance is not None: method_info = [None, None] # argspec, documentation if hasattr(self.instance, '_get_method_argstring'): method_info[0] = self.instance._get_method_argstring(method_name) if hasattr(self.instance, '_methodHelp'): method_info[1] = self.instance._methodHelp(method_name) method_info = tuple(method_info) if method_info != (None, None): method = method_info elif not hasattr(self.instance, '_dispatch'): try: method = resolve_dotted_attribute( self.instance, method_name ) except AttributeError: method = method_info else: method = method_info else: assert 0, "Could not find method in self.functions and no "\ "instance installed" methods[method_name] = method documenter = ServerHTMLDoc() documentation = documenter.docserver( self.server_name, self.server_documentation, methods ) title = _html_escape_quote(self.server_title) return documenter.page(title, documentation) class DocXMLRPCRequestHandler(SimpleXMLRPCRequestHandler): """XML-RPC and documentation request handler class. Handles all HTTP POST requests and attempts to decode them as XML-RPC requests. Handles all HTTP GET requests and interprets them as requests for documentation. """ def do_GET(self): """Handles the HTTP GET request. Interpret all HTTP GET requests as requests for server documentation. """ # Check that the path is legal if not self.is_rpc_path_valid(): self.report_404() return response = self.server.generate_html_documentation() self.send_response(200) self.send_header("Content-type", "text/html") self.send_header("Content-length", str(len(response))) self.end_headers() self.wfile.write(response) class DocXMLRPCServer( SimpleXMLRPCServer, XMLRPCDocGenerator): """XML-RPC and HTML documentation server. Adds the ability to serve server documentation to the capabilities of SimpleXMLRPCServer. """ def __init__(self, addr, requestHandler=DocXMLRPCRequestHandler, logRequests=1, allow_none=False, encoding=None, bind_and_activate=True): SimpleXMLRPCServer.__init__(self, addr, requestHandler, logRequests, allow_none, encoding, bind_and_activate) XMLRPCDocGenerator.__init__(self) class DocCGIXMLRPCRequestHandler( CGIXMLRPCRequestHandler, XMLRPCDocGenerator): """Handler for XML-RPC data and documentation requests passed through CGI""" def handle_get(self): """Handles the HTTP GET request. Interpret all HTTP GET requests as requests for server documentation. """ response = self.generate_html_documentation() print 'Content-Type: text/html' print 'Content-Length: %d' % len(response) print sys.stdout.write(response) def __init__(self): CGIXMLRPCRequestHandler.__init__(self) XMLRPCDocGenerator.__init__(self)